Art of making artificial stone.



UNITED STATES Patented September 29, 1903.

ATENT Enron.

ART OF MAKING ARTIFICIAL STONE.

SPECIFICATION forming part of Letters Patent No. 739,835, dated September 29,1903. Application filed October 1, 1902- Serial No. 1 25 595. (No specimens.)

To all whmn it mayconccrn:

Be it known that I, MATHILDE Oonnns, nee Mi'ILLER, lady, a subject of the Emperor of Germany, residing at 16 Scheffelstrasse, Hanover, Germany, have invented certain new and useful Improvements in the Art of Making Artificial Stone, of which the following is a specification. l

The present invention relates to the art manufacturing. artificial stone, the purpose being to render the resultant stone extremely light, durable, and particularly hard and at the same time inexpensive in its manufacture. The stones can be produced of any shape and dimensions and are preferably adapted for use in erecting light partitions ordividing-walls of anykind.

It is known that light stones may be obtained by adding peat, peatrubble, tan, ashes,

&c. .to a solution of e 1 sum in water intro- 2 a ducing the resultant mixture, which'is of pulpy consistence, into suitable forms or molds and then drying the stones in the forms or molds. Such stones, however, are not durable and of the required hardness. My invention is designed to overcome these objections, and it resides principally inthe employment as a filling material of peat in the form of comminuted peat or peat-rubble when combined with a material of greater specific gravity, also in comminuted form, which has the property of attaching itself to the peat, thereby preventing the latter from rising and distributing itself unevenly in the liquid mass into which itis introduced. This property has been found by me to exist in an eminent degree in ashes and also in comminuted or pulverulent coke, which for this purpose is an equivalent of the ashes.

such other features and methods as will be wood-planing machine are preferably added hereinafter described, and pointed out in the claims,

The following will serve as an example embodying the preferred manner of carrying out my invention.

In order to manufacture about twenty-five hollow stones of twenty-five centimeters added with the peat and ashes or thereafter.

The wood shavings absorb very little moistu re and unite firmly with the mass after it has set. Since they extend in all directions throughout the mass and since the mass enters into the tubular spaces formed by the curled-up shavings, they form a very effective anchoring medium for said mass. then preferably continuously stirred until it is introduced into the molds. This mixture is of a thin pulpy consistence. After it has been poured into the molds it is submitted to a drying process while in the molds, said drying process being either carriedout by artificial means or being merely an airdrying process. set the artificial stones are removed from the molds or forms and piled up for further dry-' The mixture is As soon as the mass has completely same time very strong. In view of cheapness of the raw materials employed and the simplicity of their manufacture their cost is relatively low.

Instead of the peat-rubble tan may be employed and is to be regarded as an equivalent of the peat, since it also will combine with ashes or pulverulent coke in such away as to prevent its rising to the top and to insure an even distribution of the same throughout the mass.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent of the United States, is-

l. The process of making artificial stone, which consists in adding to an aqueous lime and barium mixture comminuted peat combined with a comminuted substance of greater specific gravity which has the property of attaching itself to thepeat particles.

2. The process of making artificial stone, which consists in adding to an aqueous lime and barium mixture comminuted peat combined with a com minuted substance of greater specific gravity which has the property of attaching itself to the peat particles, and also adding wood shavings to such mixture.

3. The process of making artificial stone, which consists in mixing hydraulic lime and barium hydrate or carbonate with water, and then adding to .the mixture so formed gypsum and comminuted peat combined with a pulverulent material of higher specific gravity than peat, which will attach itself to the particles of the peat.

4:- The process of making artificial stone, which consists in mixing hydraulic lime and barium hydrate or carbonate with water, and then adding to the mixture so formed gypsum and comminuted peat combined with a pulverulent material of higher specific gravity than peat, which will attach itself to the particles of the peat, and wood shavings.

5. The process of making artificial stone, which consists in dissolving hydraulic lime and barium hydrate or carbonate with water, and then adding to the solution so formed gypsum and comminuted peat combined with a pulverulent material of higher specific gravity than peat, which will attach itself to the particles of the peat.

6. The process of making artificial stone, which consists in dissolving hydraulic lime and barium hydrate of carbonate with water, and then adding to the solution so formed gypsum and comminuted peat combined with a pulverulent material of higher specific gravity than peat, which will attach itself to the particles of the peat, and wood shavings.

7. The process of making artificial stone, which consists in mixing hydraulic lime and barium hydrate or carbonate with water, and

then adding to the mixture so formed gypsum and comminuted peat combined with a pulverulent material of higher specific gravity than peat, which will attach itself to the particles of the peat, then molding, and drying the same.

8. The process of making artificial stone, which consists in mixing hydraulic lime and barium hydrate or carbonate with water, and

then adding to the mixture so formed gypsum taches itself to the peat particles.

10. A composition for artificial stones, &c., consisting in a mixture of barium and lime compounds with comminuted peat combined MATHILDE counts, G. B. MULLER.

Witnesses:

ADOLF OoRnEs, LEONORE RASOH. 

